321204130414321 has 16 divisors (see below), whose sum is σ = 403771898199168. Its totient is φ = 250288932783120.

The previous prime is 321204130414313. The next prime is 321204130414333. The reversal of 321204130414321 is 123414031402123.

It is a happy number.

It is not a de Polignac number, because 321204130414321 - 2³ = 321204130414313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321204130424321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17237520490 + ... + 17237539123.

It is an arithmetic number, because the mean of its divisors is an integer number (25235743637448).

Almost surely, 2^{321204130414321} is an apocalyptic number.

It is an amenable number.

321204130414321 is a deficient number, since it is larger than the sum of its proper divisors (82567767784847).

321204130414321 is an equidigital number, since it uses as much as digits as its factorization.

321204130414321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34475059653 (or 34475059631 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 321204130414321 its reverse (123414031402123), we get a palindrome (444618161816444).

It can be divided in two parts, 3212041304 and 14321, that added together give a square (3212055625 = 56675²).

The spelling of 321204130414321 in words is "three hundred twenty-one trillion, two hundred four billion, one hundred thirty million, four hundred fourteen thousand, three hundred twenty-one".